Stamping and other press.



W.-H. HIBBARD.

STAMPING AND OTHER PRESS.

APPLICATION FILED JUNE 4, 1909.

Patented May 23, 1911.

5, h "Arro/m r UNITED STATES OFFICE.

WILLIAM H. HIBBARD, or BROOKLYN, NEW YORK, AssIGNon .To w. H. 3131mm)MFG CO., OF BROOKLYN, NEW YORK, A. CORPORATION OF NEW YORK.

( STAMPING AND OTHER PRESS.

To all whom it may concern:

Be it known that I, WILLIAM H. HlBBARD,

a citizen of the United States, and a resident of Brooklyn, in thecounty of Kings and State of New York, have invented certain newand'useful Improvements in Stamping and other Presses, of which thefollowing is a specification.

The invention relates to improvements in 5 presses, such as are employedfor stamping up metal and the like, and it consists in the novelfeatures, arrangements and combinations of parts hereinafter described,and

particularly pointed out in the claim.

The object of; this invention is to provide the presses with safetydevices for prevent-j ingthe operatives from having their hands orarmsdnjured, as so frequently happens, bynot removing them quicklyenough from below the slide of the press.

In carrying out my invention,-I provide the press with a rod or guard inother form for pushing outwardly from below the slide,

the hand or arm of the operative, should.

the same bejleft. below the slide, said means moving across under theslide and toward movementof the slide returning to a tion in rear of thevertical planeofthe same.

The means forcarrying out my invention may be modified in some respectswithout departing from the spirit and scope of the invention, since thepurpose is to equip presses. with means which will pass below the slideand drive from such location. the hand or arm of an operative, if leftthere, during each downward movement of the slide, and recede to itsinoperative or rear position during each upward movement of the slide.

The invention will be fully understood from the detailed descriptionhereinafter presented, reference being had to the accompanying drawings,inwhich: 1

Figure l is a rear elevation, partly broken away, of a pressof ordinaryconstruction equipped with safety devices embodying my invention; andFig. 2 is a vertical section of the same on the dotted line 22 of Fig.1, the safety devices being shown in their normal inoperative positionby full linesand in their operated-position by dotted lines.

Specification of Letters Patent. Application filed June 4,-1909. SerialNo. 500,084.

Patented May 23, 1911.

Int-he drawings, ,10designates the frame of a press, 1l't he bed-platethereof and 12 the usual sl-ide, adapted to carry the male die. Thepressneed not be specifically described since it is of usual construction andmy invention has to do with safety-devices adapted for applicat on topresses already in use or to presses to be built for use.

Referring to Figs. 1 and 2, 14, 15 designate two corresponding pivotallymounted crank-arms connected at their lower portions by a transverse rod16 which constitutes the medium for pushing from below the slide 12, onits descent, the hand of the operative should the same be left below theslide. The crank-arms 14, 15 are pivotally secured by bolts 17 torearwardly ex-;

tending arms 18 of a bracket 19 carried by the "slide 12, said bracketbeing secured to. the slideby means of a bolt 20 and preferably beingrendered vertically adjustable by having a slot 21 through which saidbolt passes. The crank-arms 14, 15 are of irregular shape andconsidering them in their no mal inoperated position shown by solid'lines in Fig. 2, they each have a vertical section 22 extendingdownwardly from the bolt" 17 a rearwardly'and downwardly inclinedsection 23 of less width than the sec tion 22, a downwardly andforwardly in 1 c'lined section 24, a laterally extendingsection 25, anda downwardly extending terminal section 26. The transverse .rod 16 isadjustably secured on the sections 26 of the crank-arms 14, 15. Thecrank-arms 14,

15 at the lower ends of their upper sections 22, are pivotally secured,by bolts 27, to the upper ends of the links 28, whose lower ends arepivotally secured, by bo 29, to the side frames of the press'in res j-ofthe vertical plane of said bolts 27.

It may be seen onreference to Fig. 2that the transverse rod 16,when theslide 12 is up, stands in rear of the vertical plane of the same andsuitably above the bed-plate 11,

When the slide 12 descends to perform its' work, the bracket 19 and arms14,15 are carried downwardly by the same, and at such I time said armsare rocked forwardly by the turning toward the front of the upper endsof the links 28, as indicated by the dotted.

lines in Fig. 2, with the result that during the descent of the slide,the rod 16 isdriven forwardly below thesamein a path to force the handof the operative, should it have been left there, forwardly from thedanger zone. Upon the return of the slide 12 to its upper position, thearms 14:, 15 are carried upwardly thereby and at the same time rockedrearwardly to their initial position, carrying the-rod 16 to a locationin rear of the vertical plane of the slide, by the links 28. With eachdownward movement of the slide 12 the rod 16 is driven forwardly belowand beyond the same, and with each upward movement of the slide said rodis carried rearwardly below the same to its initial position. Theforward movement of the rod 16 is to prevent the hands of the operativefrom remaining below the descending slide and to thereby avoid theaccidents which have so frequently occurred by the carelessness ofoperatives in not withdrawing their hands clear of the descending slideand die carried thereby.

What I claim as my invention and desire to secure by Letters-Patent, is;

Incombination with a stamping press and the like, a safety devicecomprising two' crank-arms pivotally secured at their upper ends to theslide and carrying at their lower ends a connecting transverse rod, andlinks pivotally securedat their lower ends to fixed parts of the pressand at their upper ends to said arms, whereby on the descent of theslide said rod will-be rocked forwardly below the same and on the ascentof the slide returned to its initial position; substantially as setforth.

Signed at New York city, in the county of New York and State of NewYork, this 3rd day of June A. D. 1909.

WILLIAM H. HIBBARD.

Witnesses:

ARTHUR MARION, CHAS. G. GILL.

